Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to know how to remove the WAF Policy from Application Gateway.
- Currently, Azure App Gateway WAFV2 does not support you to tier down to Standard V2.
- This means, at all times, the App gateway would require you to have a WAF Policy associated to it.
- While you can swap a Policy attached to a gateway, I am afraid you will not be able to remove the WAF Policy completely.
Alternatively, you can disable the WAF or keep it in the Prevention mode.
This should not require you to Stop/Start the App Gateway.
You should be able to do the above using the Portal in the WAF Policy Overview page
Kindly let us know if this helps or you need further assistance on this issue.
Thanks,
Kapil
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